PalindromemordnilaP in all languages in chars. Achievements Cheevos Holes Languages Medals Miscellaneous All Holes 12 Days of Christmas 24 Game 99 Bottles of Beer Abundant Numbers Abundant Numbers (Long) Arabic to Roman Arithmetic Numbers Arrows Ascending Primes ASCII Table Billiards brainfuck Calendar Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz Continued Fractions CSS Colors Cubes Day of Week DFA Simulator Diamonds Divisors Emirp Numbers Emirp Numbers (Long) Emojify Evil Numbers Evil Numbers (Long) Factorial Factorisation Farey Sequence Fibonacci Fizz Buzz Foo Fizz Buzz Bar Forsyth–Edwards Notation Fractions Game of Life Gijswijt’s Sequence Happy Numbers Happy Numbers (Long) Hexdump Hilbert Curve Intersection Inventory Sequence ISBN Jacobi Symbol Kaprekar Numbers Kolakoski Constant Kolakoski Sequence Leap Years Levenshtein Distance Leyland Numbers ln 2 Look and Say Lucky Numbers Lucky Tickets Mahjong Mandelbrot Maze Medal Tally Minesweeper Morse Decoder Morse Encoder Multitap Input Musical Chords N Queens Niven Numbers Niven Numbers (Long) Number Spiral Odious Numbers Odious Numbers (Long) Ordinal Numbers PalindromemordnilaP Pangram Grep Partition Numbers Pascal’s Triangle Pernicious Numbers Pernicious Numbers (Long) Poker Polyominoes Prime Numbers Prime Numbers (Long) Proximity Grid QR Decoder Quine Recamán Repeating Decimals Reverse Polish Notation Reversi Rijndael S-box Rock-paper-scissors-Spock-lizard Roman to Arabic ROT13 Rule 110 Scrambled Sort Set Seven Segment SI Units Sierpiński Triangle Smith Numbers Spelling Numbers Star Wars GPT Star Wars Opening Crawl Sudoku Sudoku (Fill-in) Ten-pin Bowling Tic-tac-toe Time Distance Tongue-twisters Topological Sort Tower of Hanoi Transpose Sentence Trinomial Triangle United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> ALGOL 68 ArkScript Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir Erlang F# Factor Forth Fortran Gleam Go GolfScript Groovy Haskell Hexagony J Janet Java JavaScript jq Julia K Kotlin Lua Nim OCaml Pascal Perl PHP PowerShell Prolog Python R Raku Rockstar Ruby Rust Scheme sed SQL Swift Tcl TeX V VimL Wren Zig 05AB1E APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Bytes Chars Scoring Bytes Chars Language All ><> ALGOL 68 ArkScript Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir Erlang F# Factor Forth Fortran Gleam Go GolfScript Groovy Haskell Hexagony J Janet Java JavaScript jq Julia K Kotlin Lua Nim OCaml Pascal Perl PHP PowerShell Prolog Python R Raku Rockstar Ruby Rust Scheme sed SQL Swift Tcl TeX V VimL Wren Zig Experimental Language 05AB1E APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Hole All 12 Days of Christmas 24 Game 99 Bottles of Beer Abundant Numbers Abundant Numbers (Long) Arabic to Roman Arithmetic Numbers Arrows Ascending Primes ASCII Table Billiards brainfuck Calendar Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz Continued Fractions CSS Colors Cubes Day of Week DFA Simulator Diamonds Divisors Emirp Numbers Emirp Numbers (Long) Emojify Evil Numbers Evil Numbers (Long) Factorial Factorisation Farey Sequence Fibonacci Fizz Buzz Foo Fizz Buzz Bar Forsyth–Edwards Notation Fractions Game of Life Gijswijt’s Sequence Happy Numbers Happy Numbers (Long) Hexdump Hilbert Curve Intersection Inventory Sequence ISBN Jacobi Symbol Kaprekar Numbers Kolakoski Constant Kolakoski Sequence Leap Years Levenshtein Distance Leyland Numbers ln 2 Look and Say Lucky Numbers Lucky Tickets Mahjong Mandelbrot Maze Medal Tally Minesweeper Morse Decoder Morse Encoder Multitap Input Musical Chords N Queens Niven Numbers Niven Numbers (Long) Number Spiral Odious Numbers Odious Numbers (Long) Ordinal Numbers PalindromemordnilaP Pangram Grep Partition Numbers Pascal’s Triangle Pernicious Numbers Pernicious Numbers (Long) Poker Polyominoes Prime Numbers Prime Numbers (Long) Proximity Grid QR Decoder Quine Recamán Repeating Decimals Reverse Polish Notation Reversi Rijndael S-box Rock-paper-scissors-Spock-lizard Roman to Arabic ROT13 Rule 110 Scrambled Sort Set Seven Segment SI Units Sierpiński Triangle Smith Numbers Spelling Numbers Star Wars GPT Star Wars Opening Crawl Sudoku Sudoku (Fill-in) Ten-pin Bowling Tic-tac-toe Time Distance Tongue-twisters Topological Sort Tower of Hanoi Transpose Sentence Trinomial Triangle United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Experimental Hole Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 481st error256 680 63 930ms 20 Dec 2025 482nd fourth-bit 679 92 9ms 4 Sep 2024 482nd bnic24 679 92 11ms 5 Sep 2024 484th MeWhenI 🇻🇦 679 117 116ms 2 Sep 2024 484th stefangimmillaro 679 117 99ms 2 Sep 2024 486th madex 🇩🇪 678 177 220ms 17 Sep 2024 487th BlankSpruce 676 158 65ms 1 Sep 2024 488th dokutan 675 156 42ms 1 Sep 2024 489th dcgjb 674 69 365ms 11 Sep 2024 490th adamnielson42 🇺🇸 672 93 10ms 7 Oct 2024 490th smiksky 🇺🇸 672 93 11ms 16 Oct 2024 490th guilhem-roy 🇫🇷 672 93 10ms 31 May 2025 493rd alicethecatwhisperermeow 672 132 421ms 14 Sep 2024 494th stefangimmillaro 671 63 35ms 2 Sep 2024 494th SirBogman 🇺🇸 671 63 36ms 5 Sep 2024 496th madeforlosers 668 106 14ms 23 Oct 2024 497th chunes3 🇺🇸 668 112 64ms 1 Sep 2024 498th prestosilver 🇺🇸 668 121 479ms 4 Feb 2026 499th mousetail 🇳🇱 665 94 12ms 1 Sep 2024 499th ljweel 665 94 10ms 12 Sep 2024 501st DialFrost 🇸🇬 663 96 105ms 28 Nov 2025 502nd DialFrost 🇸🇬 663 181 203ms 12 Apr 2025 503rd Maznek 662 107 12ms 8 Oct 2024 504th dokutan 661 64 39ms 23 Feb 2025 505th Shanethegamer 🇺🇸 661 91 162ms 5 Sep 2024 506th GolfingSuccess 🇬🇷 660 162 471ms 1 Sep 2024 506th ovs-code 🇩🇪 660 162 3,010ms 1 Sep 2024 508th msbranicky 658 95 10ms 1 Sep 2024 508th Bulmenisaurus 658 95 12ms 4 Sep 2024 508th btjones0 658 95 10ms 13 Sep 2024 508th jfallon1997 658 95 9ms 26 Sep 2024 508th jacekwladzinski 658 95 9ms 7 Oct 2025 508th aalec 658 95 9ms 8 Nov 2025 514th msbranicky 657 95 2,665ms 8 Jan 2025 515th NickTheEASDude 🇺🇸 657 105 2ms 7 Oct 2025 516th Shanethegamer 🇺🇸 657 135 407ms 1 Sep 2024 517th lukechampine 657 200 274ms 7 Jun 2025 517th jerrandolph 657 200 296ms 21 Sep 2025 519th msbranicky 656 136 3ms 1 Sep 2024 520th albanian-laundromat 655 189 44ms 14 Sep 2025 521st m-tkach 🇺🇦 653 169 29ms 9 Feb 2026 522nd TFeld00 🇩🇰 651 65 34ms 3 Sep 2024 523rd fgrosshans 🇫🇷 651 96 9ms 1 Sep 2024 523rd mm1013g 651 96 11ms 2 Sep 2024 523rd Mikey-Beep 🇬🇧 651 96 12ms 2 Sep 2024 523rd JudeTyrrell 651 96 10ms 22 Sep 2024 527th ShiraJoseph 🇺🇸 650 109 11ms 22 Sep 2024 528th dokutan 649 78 179ms 3 Sep 2024 529th msbranicky 648 203 285ms 1 Sep 2024 530th voytxt 🇨🇿 647 93 161ms 17 Apr 2025 531st AlephSquirrel 647 248 3ms 29 Sep 2024 532nd stefangimmillaro 645 71 1,320ms 3 Sep 2024 533rd Waffle3z 645 107 2ms 2 Oct 2024 534th stefangimmillaro 645 151 494ms 6 Oct 2025 535th scpchicken 🇵🇼 644 97 244ms 8 Sep 2024 535th Carlettos1 644 97 12ms 14 Sep 2024 537th mrxz 🇳🇱 644 110 11ms 22 Sep 2024 537th weliveinhell 🇭🇹 644 110 10ms 28 Sep 2024 539th Chinay-Domitrix 🇺🇸 643 97 2,560ms 8 days ago 540th BlankSpruce 642 140 2ms 1 Sep 2024 541st aDwarfNamedUrist 640 138 119ms 4 Sep 2024 542nd stefangimmillaro 638 188 208ms 4 Jun 2025 543rd SirBogman 🇺🇸 637 73 435ms 23 Jul 2025 544th pickerj 637 98 11ms 13 Sep 2024 544th dtbao20 🇻🇳 637 98 17ms 30 Sep 2024 544th YAJUE114514 637 98 10ms 30 Jul 2025 544th netfri25 🇮🇱 637 98 10ms 22 Feb 2026 544th rotemkm 637 98 10ms 22 Feb 2026 549th Shanethegamer 🇺🇸 636 72 1,301ms 1 Sep 2024 549th anter69 🇭🇺 636 72 1,291ms 25 Oct 2024 551st weeble 636 77 8ms 21 Dec 2025 552nd Ripick 636 127 387ms 6 Sep 2024 553rd CaedenHarper 🇨🇦 633 112 11ms 22 Aug 2025 554th olleicua 🇺🇸 631 67 40ms 6 Sep 2024 554th madex 🇩🇪 631 67 35ms 7 days ago 556th alexeldridge 631 99 11ms 14 Sep 2024 556th Just4FunCoder 631 99 10ms 14 Sep 2025 556th 0xjac 🇨🇭 631 99 9ms 24 Nov 2025 559th cthierfelder 🇲🇨 630 193 75ms 5 Sep 2025 560th kmathis22 628 155 496ms 14 Dec 2025 First Prev 481–560 of 766 Next Last